GPT-5.6 Release Timeline: Prediction Markets | Polymarket Trade

OpenAI's GPT-5.6 represents a significant milestone in large language model development, and market participants worldwide are tracking when this release will actually occur. Rather than a single prediction market, this event aggregates five interconnected markets that divide the potential release timeline into specific windows, creating a granular picture of when the AI community collectively expects this launch to happen. The first market covers late May 2026, followed by sequential June windows spanning the first week, second week, and third week, while a fifth market captures the possibility that GPT-5.6 won't arrive by the end of June entirely. By observing the price levels across these five markets—each trading between $0.00 and $1.00—you can see how the crowd's expectation shifts across different timeframes. Higher prices indicate greater collective confidence in a release during that specific window; lower prices suggest skepticism. Prices that sum close to $1.00 across the June markets with minimal May probability, for instance, would signal broad consensus that June is the most likely launch month. These price signals emerge from continuous trading activity by thousands of participants, each contributing their own analysis of OpenAI's engineering timeline, public statements, competitive pressures, and historical release patterns. Reading this cluster of markets together reveals not just whether the release is expected soon, but exactly when the crowd thinks it's most probable—making it a powerful real-time snapshot of informed prediction about a defining moment in AI development.